-8x + 9y = 3
5x - 9y = 15

P= $1400,300 r = 7 1/2% t = 4 what is i ? $4.29 $429.00 $4290.00

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?